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40404840088 = 237990770487
BaseRepresentation
bin100101101000010100…
…001110111010011000
310212021212211112200211
4211220110032322120
51130222114340323
630321155540504
72630161321414
oct455024167230
9125255745624
1040404840088
111615452a428
1279b75ba734
133a6bbc9c02
141d54271d44
1510b730470d
hex96850ee98

40404840088 has 32 divisors (see below), whose sum is σ = 76803724800. Its totient is φ = 19924418592.

The previous prime is 40404840061. The next prime is 40404840101. The reversal of 40404840088 is 88004840404.

It is a super-2 number, since 2×404048400882 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40404840088.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537981 + ... + 608467.

It is an arithmetic number, because the mean of its divisors is an integer number (2400116400).

Almost surely, 240404840088 is an apocalyptic number.

It is an amenable number.

40404840088 is a deficient number, since it is larger than the sum of its proper divisors (36398884712).

40404840088 is a wasteful number, since it uses less digits than its factorization.

40404840088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71479 (or 71475 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 40404840088 in words is "forty billion, four hundred four million, eight hundred forty thousand, eighty-eight".

Divisors: 1 2 4 8 79 158 316 632 907 1814 3628 7256 70487 71653 140974 143306 281948 286612 563896 573224 5568473 11136946 22273892 44547784 63931709 127863418 255726836 511453672 5050605011 10101210022 20202420044 40404840088